Perhaps the most important question is the desired energy autonomy of your food trailer. Autonomy depends on combinations of factors. How long do you want to be independent? And what equipment do you have on at the same time and with what power? Autonomy is especially important if you cannot always connect to the mains. A battery-powered system can suffice for a limited period, for example for lighting, the extractor hood, the water pump and the refrigerated section. When installing equipment that consumes a lot of energy, even a generator alone may not be sufficient. The applications of a gas installation, generators, batteries and power supply while driving, all have advantages and disadvantages. Often a combination is needed. We are happy to advise you on this.